Jacob is ordering baseball gloves for 214 league members. If the gloves are packed in boxes of 8, what is the least number of boxes Jacob needs to order? A. 17
O B. 21
C. 27
D. 30

The coverage of a base station of a telecommunication company forms a disk with a radius of (kilometers). let be the distance of a cellphone from a base station. assume that the location of cellphones in use are randomly uniformly distributed within the disk. calculate the mean and variance for the random variable.